diff --git a/en_US.ISO8859-1/books/Makefile b/en_US.ISO8859-1/books/Makefile
index de2ed2f597..1dd8011b56 100644
--- a/en_US.ISO8859-1/books/Makefile
+++ b/en_US.ISO8859-1/books/Makefile
@@ -1,4 +1,4 @@
-# $FreeBSD: doc/en_US.ISO_8859-1/books/Makefile,v 1.9 2001/04/09 20:41:33 nik Exp $
+# $FreeBSD$
 
 SUBDIR = corp-net-guide
 SUBDIR+= design-44bsd
@@ -7,7 +7,6 @@ SUBDIR+= faq
 SUBDIR+= fdp-primer
 SUBDIR+= handbook
 SUBDIR+= porters-handbook
-SUBDIR+= ppp-primer
 
 ROOT_SYMLINKS= faq handbook